Feature: 1. DETACHABLE NOZZLE: This nozzle hot end kit adopt upgraded threaded nozzle structure, removable and separately replaced. High accuracy brass nozzle, glossy inner wall without burrs, good thermal conductivity, high flowrate and high accuracy printing 2. EASY TO INSTALL: 3D printer brass nozzle hot end kit adopts radiator and heating block integrated structure, fast disassembly and installation 3. EASY TO REPLACE: Compatible with for Bambu Lab A1, for A1 Mini, the for A1 extrusion head has threaded, brass nozzles that can be removed and replaced to reduce running costs, this for A1 hot end extrusion head special replaceable nozzles can be replaced 4. HIGH TEMPERATURE PRINTING: Brass nozzle is made of excellent brass material with higher thermal conductivity, higher strength, stronger oxidation resistant and longer service life, which can support high temperature filament ≤320℃, and the removable nozzle is easy to replace and save time 5. INSULATED SILICONE SOCKET: The silicone socket can prevent the fan from cooling the heat block and help stabilize the temperature, useful and practical Specification: Item Type: Brass Nozzle Hot End Kit Filament Diameter: Approx. 1.75mm / 0.07in Installation Method: Threaded fixing Compatible Filaments: PLA, ABS, PETG, TPU, PP, PC, nylon, etc. Compatible Models: For A1, A1 mini Installation Method: Magnetic installation . Package List: 1 x Hot End Kit 2 x Wrench